a.py

def get_restaurants_list(page=1):
    global counter
    http = urllib3.PoolManager()
    base_api_url = 'https://www.snappfood.ir/restaurant/?page={}'
    
    r = http.request('GET', base_api_url.format(page))
    soup = BeautifulSoup(r.data.decode('utf-8'),'lxml')

    restaurant_links = soup.find_all('div',class_='kk-pp-title')
    res = list()
    
    for i in restaurant_links:
        res.append(i.find_all('a')[0]['href']) # get link of restaurant's page
    counter+=1
    print(counter)
    return res;